docs: draft Bigscreen DisplayID parser proof packet

[Jesssullivan]

Summary

• add a proof packet for the Bigscreen Beyond DisplayID non-desktop parser route
• add an unpublished technical-report draft for the kernel submission decision
• keep the public narrative in draft state pending the 2026-04-27 route decision

Validation

• just validate-frontmatter passed 167/167
• git diff --check passed

Notes

The kernel quirk-only route is held. Current drm-misc-next parser behavior is proven by KUnit on honey; remaining decision is regression-test-only patch vs downstream carry cleanup.

[github-actions]

📝 Blog Post Review

Found 1 blog post(s) in this PR:

Post	Status	Date	Published	Tags	Linear
Bigscreen Beyond EDID Non-Desktop Handling: Evidence, Prior Art, and Submission Path	🆕 New	2026-04-25	❌ Draft	linux, kernel, drm, edid, openxr, monado, hardware, rocky-linux, bci	none

Schema Validation

✅ All posts pass schema validation.

Slash Commands

Command	Description
/schedule 2026-03-15	Schedule auto-merge for a date
/publish	Set all posts to published: true
/draft	Set all posts back to draft
/retitle "New Title"	Change a post's title
/review	Re-run AI prose review
/suggest-links	Find unlinked keywords

[Jesssullivan]

2026-04-28 truth pass: this remains the current Bigscreen DisplayID/parser proof-packet surface. It is draft and CI-green.

Linear mapping: TIN-622 owns the proof-packet coordination and TIN-612 owns the linux-xr upstream route decision. Keep this draft until the 2026-04-30 decision is made; it is evidence/supporting material, not a publish-ready post yet.